Pipe-coupling.



.|. T. HUDGINS.

.PIPE COUFLING. APPLrcAHoN FILED AUG.25. 1914.`

Patented May 29, '1917.'

5 -ff-2, A

UNITED sTATEs PATENT oEErcE.

JOHN T. HUDGINS, OF NORFOLK, VIRGINIA, ASSIGNOR OF ONE-HALF T EDWARD SAWYER, 0F' NORFOLK, VIRGINIA.

PIPE-COUI'LING.

Specification of Letters Patent. Patented lay 29, 1917,

Application led August 25, 1914. Serial No. 858,527.

To all whom it may concern.'

Be it known that I, JOHN T. HUDGrNs, a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented new and useful Improvements in Pipe-Couplings, of which the following is a specification.

The present invention relates to improvements in couplers for joining or connecting the -ends of pipes and sustaining the same In carrying out-my invention it. is my purpose to provide a coupler, primarily adapted for connecting two electric conduit pipes, which shall comprise two members which shall be easily associated to embrace the ends ofthe pipes and sustain the said pipes in longitudinal alinement, and at the same time shall seal the ends of the said pipes to prevent the admission of dirt or pler, and the said sections being further provided with pipe engaging means, independent of the rcompressible ring for preventving the separation of the pipe members when engaged by the coupler.

I further aim to provide a coupler for the purpose stated which shall be of a simple construction, cheap to manufacture, easily applied to or removed from the ends of the pipes, and which will perform the functions for which it is devised with eliiciency and with accuracy.

With the above recited objects in view,

' and others which will'appear as the nature of the improvement is more fully understood, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and falling Within the scope of the appended claim,

In the drawings: I n Figure l is a plan view illustrating two conduit pipes having their ends connected by my improved coupler,

Fig. 3- is a `longitudinal sectional view on the line 3 3 of Fig. 1, the' pipe sections as well as the binding screws being in elevation, Y

Fig. 4 is a plan view looking toward the inner face of one of the coupler sections,

Fig. 5 is a view illustrating the ends of the flexible metallic conductor pipe connected by my improvement,

Fig. 6 is an end View of the same,

Fig. 7 is a view looking toward the inner face of one of the Acoupler members illustrated in Figs. 5 and 6,

Fig. 8 is asimilar view of the second coupler member.

Referring now to the drawing in detail, 1 1 designate the ends of two electric conduit pipes which are connected by my, improved coupling..

The coupler is generally designated by the numeral 2, and comprises a sectional sleeve having an inner bore of a size to snugly receive the pipe ends. The coupler includes a pair of members 3, 4 respectively, the said members having a knuckle joint connection upon one of their ends. The knuckle is formed upon the coupler a suitable distance from the ends thereof, the male member being provided upon the lower section 4,. while the female or hook member (3 is formed upon the opposite'` or upper member 3 of the coupler. The members 3 and 4, at their ends opposite that provided with the knuckle joint ha ve outwardly 'extending flanges 7 which are provided with registering openings 8 through which passes a screw or bolt 9, a nut l0 engaging the threaded end of the member 9 to lock the sections of the coupler.

The bore of the split or sectional sleeve comprising the coupler, is centrally formed with an elongated depression providing a pocket ll for the reception of a split compressible ring or washer member 1l. The

split ring ll, it will be noted, surrounds thc i meeting ends of the pipe sections l--L and the said ring being of a length corresponding with the length of the elongated pocket 1l also engages with a considerable portion of the pipes beyond their contacting 't ends, and the Sections of. the coupler being adjacent its opposite ends and to the oppol ysite sides of the pocket 11.' Passing through and. engaging with the threads of the .openings 12 are binding bolts 13 which in the present instance, are in the nature of headed l screws, the said heads being received within lcountersinks that communicate with the openings 12 to provide a smooth undersurface for the coupler. The heads of the members 13 have transverse slots to receive the bit. of a screw driver, whereby the same may be adjusted.

In Figs. f5 to 8 the coupler is primarily adapted 4for connecting the ends of a flexible metallic conduit 2. Such conduits are inthe nature of luted orcorrugated 4sections and designated by .the numerals 1li-14. The coupler l5 is inthe nature of a centrallysplit sleeve, the 'sections of which being connected by a knuckle joint. The joint is yprovided by forming one of the edges of one of the sections with an inwardly extending tongue 16, and by recessing or channeling the second section adjacent its coperating edge to provide the 5 same with a rib 17 to engage the hook 16.

The opposite edges of the members are provided with centrally disposed longitudinally extending iianges or lips l18-18` having openings to receive the headed screw 19 which: is provided with a' nut 20. The

sections are centrally formed with anelongated circular depression l21-21, which pro.

vides a.l pocket for the-reception of a'split ltubular compressible member similar 1.o the ring l1. The boreof the coupler 15, to the opposite sides of the pocket is4 formed with angularly disposed teeth @or ribs 22 whichare adapted to engage the pipe secthereof.

From the above description, taken in contions 14 between the corrugated members 'nection with the accompanying drawingsh the simplicity of the device as well as the .advantages thereof Will', vit is thought, be Vperfectly apparent to those skilledin the art to which such invention appertains Without further detailed description.

Having thus described .the invention, what Iclaim is: M

.In'combination a pair of 'semi-cylindrical members each formed with an integral lip, one of said members being formed diametrically opposite its lip with an inwardly eX- tending tongue and the other of said mem- -bersbeing formed with a rib inv diametrical alinement with its lip,the" first-named member havingl a shoulderv formed by its tongue disposed lushwith its lip, said members adapted to becoupled together and being so positioned that thesurface ofthecoupled members adjacentthereto forms part of a cylindrical surface, said tongue being adapted to be hooked onto said'rib andengaging said shoulder to cause said .lips to Contact, each of said members being formed internally with a pair of semi-cylindrical disposed threads, the threads of 'said members being coupled to form completely cylindrical threads, and means for securing said lips together.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN T; HUDGINs.) Witnesses:

E. EDMoNs'roN, Jr.,

WM. KOERTH. 

